👤

2{7x-3×[(x-1)-2(x+4)]-9}=5(x+3) rezolvare e urgenttt vă rogg​

Răspuns :

Răspuns:

2[7x-3*(x-1-2x-4)-9]=5x+15

2[7x-3*(-x-5)-9]-5x-15=0

2(7x+3x+15-9)-5x-15=0

2(10x+6)-5x-15=0

20x+12-5x-15=0

15x-3=0

x=3/15

X=1/5